import 'package:flutter/material.dart';
import 'package:flutter_app2/ColorUtils.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      // body: AllSendSaveSpace());
      body: Container(
        child: Column(
          children: [
            Container(
                child: GridView.builder(
              shrinkWrap: true,
              itemCount: 30,
              physics: const NeverScrollableScrollPhysics(),
              gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
                  //横轴元素个数
                  crossAxisCount: 10,
                  //纵轴间距
                  mainAxisSpacing: 20.0,
                  //横轴间距
                  crossAxisSpacing: 10,
                  //子组件宽高长度比例
                  childAspectRatio: 1 / 4),
              itemBuilder: (BuildContext context, int index) {
                return Container(
                  width: 10,
                  color: ColorUtils.hexColor(0x2680FF),
                  child: Text("abc"),
                );
              },
            ))
          ],
        ),
      ),
    );
  }
}
